Transmission circuit and communication device

Details Transmission circuit and communication device Transmission circuit and communication device

2006-06-30

2009-02-17

Trinh, Sonny (Department: 2618)

Telecommunications

Transmitter

C455S114200, C455S127100

Reexamination Certificate

active

07493091

ABSTRACT:
A transmission circuit operating at a high efficiency and a low distortion is provided. A signal generation section11generates a vector signal and an amplitude signal. A vector modulation section13performs vector modulation on the vector signal. An amplification section15amplifies the signal processed with the vector modulation. A signal processing section12performs predetermined signal processing on the amplitude signal and outputs the resultant signal. A regulator14controls a voltage to be supplied to the amplification section15based on the magnitude of the signal which is output from the signal processing section12. The signal processing section12determines whether or not the amplitude signal exceeds a threshold value at an interval of a predetermined time period, selects a discrete value to be output based on the determination result, and outputs a signal having the selected discrete value.

REFERENCES:
patent: 4947455 (1990-08-01), Swanson
patent: 6256482 (2001-07-01), Raab
patent: 6636112 (2003-10-01), McCune
patent: 6647073 (2003-11-01), Tapio
patent: 6661363 (2003-12-01), Zierhofer
patent: 7010280 (2006-03-01), Wilson
patent: 7116947 (2006-10-01), Tanabe et al.
patent: 7139534 (2006-11-01), Tanabe et al.
patent: 7373114 (2008-05-01), Yagyu et al.
patent: 2004/0185803 (2004-09-01), Tanabe et al.
patent: 2007/0129032 (2007-06-01), Matsuura et al.
patent: 2008/0031381 (2008-02-01), Matsuura et al.
patent: 2008/0031384 (2008-02-01), Hara et al.
patent: 2008/0068240 (2008-03-01), Matsuura
patent: 11-251934 (1999-09-01), None
patent: 2004-173249 (2004-06-01), None
patent: 2004-289812 (2004-10-01), None
patent: 2006-86916 (2006-03-01), None
patent: 2004/038937 (2004-05-01), None
F. H. Raab et al., “High-Efficiency L-Band Kahn-Technique Transmitter”, 1998 IEEE MTT-S Int. Microwave Symp. Dig., pp. 585-588.
P. B. Kenington, High-Linearity RF Amplifier Design, pp. 426-512, Jan. 2000, Arch House Microwave Library (only relevant pages submitted).

Affiliated with

Also associated with

Rating

Transmission circuit and communication device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transmission circuit and communication device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission circuit and communication device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4078896